Improvement in furnaces and heaters



r. BLA-ZI'CEK & G. w. M. BAUER.

Furnaces and Heaters.

Patented Jan. 5, I875.

W .UWJ

zdmm UNITED STATES PATENT OFFICE.

FELIX BLAZIOEK AND GEORG W. M. BAUER, OF VIENNA, AUSTRIA.

IMPROVEMENT IN FURNACES AND HEATERS.

Specification forming part of Letters Patent N0.15S,l60, dated January5, 1875; application filed October 26, 1874. a i

To all whom itmay concern:

Be it known that we, FELIX BLAZICEK and GEORG WILHELM MoRIrz BAUER, ofthe city of Vienna, Austria, have invented an Improved Furnace orHeater, of which the following is a specification:

Our invention consists of a fire-pot for heat ers or furnaces, which wewill now proceed to describe, and which is shown in the accompanyingdrawing, in which- Figure 1 is a vertical section of the stove orfurnace; Fig. 2, a sectional plan on the line 1 2, Fig. 1; and Fig. 3, asectional plan on the line 3 4,-Fig. 1.

A is the lower casing of the furnace, inclosing the ash -chamber a, andhaving an opening through which access can be had to the said chamber,and which is provided with a suitable hinged door, a. 'D is the outercasing of the combustion-chamber, and is fitted to the top of the lowercasing, A. A series of bars, E, surround the combustion-chamber proper,which communicates with the outlet (1 to the chimney, these grate-barsbeing wider at the bottom than at the top, thus imparting a flaring formto the said chamber. The bars rest upon the lower casing, A, and theirouter edges are in contact with the casing D, and in the spaces betweenthe grate-bars are arranged at intervals deflectors f, which serve todirect the air toward the interior of the combustion chamber. A grate,F, having a handle, g, is arranged at the lower end of thecombustion-chamber, and is so supported upon projections h of the lowercasing as to be readily removable from its position. A detachable cap,H, closes the top of the furnace, through which fuel is introduced tothe com- 7 bustion-chainber.

The operation of the furnace is as follows: The combustion-chamberhaving been filled with fuel, the fire is lighted at the top, and theair, entering the spaces between the vertical bars at the base of thesame, passes up between them and out into the mass of fuel to sustainthis combustion, the draft increasing as the fire is developed in theupper layers of fuel. The air in its upward passage becomes heated, andon mixing with the gases from the burning fuel produces an intense heat.The ignited fuel at the top of the furnace, acting on the fuel beneath,causes a distillation of the same, and the evolved gases, mixing withthe air which enters between the grate-bars, are thoroughly consumed inpassing through the incandescent fuelabove.

When all the fuel in the combustion-chamber has been exhausted, thegrate lb is withdrawn through the opening of the lower casing, the ashesfalling onto the bottom of the latter, from which they can be readilyremoved.

Our invention is not only applicable to heating-stoves, but may be usedto advantage in connection with steam-boilers, and with other furnaces.

We claim as our invention 1. The combination, in a fire-box, of acasing, D, and a series of vertical plates or bars, E, arranged withtheir rear edges in contact with the said casing, to form intermediateairchannels, communicating at their lower ends with an air passage orchamber, all as and for the purpose set forth.

2. The combination, with the bars E, ar-

ranged within the casing D, of air-deflecting ribs f between the bars,as specified.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

FELIX BLAZIOEK. GEORG WILHELM MORITZ BAUER.

Witnesses:

W. PELIKAN, CARL FREUND.

